Coffee table



FIG. 1 is an elevational view of a coffee table directly facing one of the legs thereof and showing my design;

FIG. 2 is a top view of the table;

FIG. 3 is an elevation of the table facing the aperture between adjacent legs; and

FIG. 4 is a bottom view of the table. 

The ornamental design for a coffee table, as shown and described. 